Patents by Inventor Erich Stiefel

Erich Stiefel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dispensing unit for vending machines
    Patent number: 4768680
    Abstract: A dispensing unit with a pair of product containing shaft for bottles or cans, can dispense two different types of product per shaft pair and has a high storage capacity while being compactly built. To this end a common element is assigned to a shaft pair which element can be rotated from a resting position, selectively to the right or left.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: September 6, 1988
    Assignee: Sielaff GmbH & Co. Automatenbau Herrieden
    Inventors: Bernd Mehlan, Erich Stiefel, Josef Bayer, Klaus Lechner